Successful implementation of alternative GUI

I have setup a project (named CineStripScanner) to scan cine film strips. This are 5 to 20 cm long snippets of a cine film ( 8mm, 9.5 mm Pathé, 16 mm) in order to digitize these cine films (footage mainly recorded by amateurs - most of them
using Super 8 or Regular 8 film material).

The part of the program suite, that deals with the digitization and video generation already works perfectly since several years. ( See
http://hosting.aktionspotenzial.de/CineToVidWiki/index.php/Hauptseite ) and there was also a program to support strip scanning. But with the advent of Windows 10 (32 and 64 Bits) this program (called
ScanController) did not work anymore and we found no way to activate it under Windows 10. The problem is the native scanner driver (e.g. from Epson or other manufacturers). There is no way to evaluate several internals, which are needed to
allow their exploitation.

When I started the project I did some surveys to find out what software might be needed to achieve the goal. There was MS WIA, TwainForC# from the Twain Working group and finally SARAFF.Twain.
First attempt was to exploit TwainForC#. But severe problems came up und the TWAIN Working Group was not really responsive. So I had a look at WIA, But WIA seemed to be not very well supported using C# and .NET as a conveniant development platform.

So I finally switched to SARAFF.Twain - and this was an excellent decission.
I up to this moment was a real novice in the TWAIN domain and I had several problems.
But a very big compliment to SARAFF. He is very responsive and provided all the required information - so I am currently in the situation, that the individual GUI I designed for my project is almost completed ( a few minor errors, but nothing
severe).

All envisaged functions of the CineStripScanner related to scanning work very well.
SARAFF.TWAIN provided all the needed functions in the SARAFF.TWAIN Package.
Again congratulations.

And this is a list of the offered functions of the CineStripScanner:

Dialog to define the parameters needed for scanning - e.g.

desired resolution (must be between 3200 and 4800 dpi or even more), that is handling of up to 150 MB Bitmaps

definition of scanning rectangle and rectangle position on the scanners pane.